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Got my first microscope for Christmas, now I have a question.

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#1 zjc26138

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Posted 27 December 2018 - 07:00 PM

My wife bought me my first microscope for Christmas. It's a Celestron Model #44121. Max power of 600x. With two led lights.

 

Seems like a really nice beginner microscope.

 

My question is this:

 

I was able to remove the 10x-20x zoom eyepiece and use my Astrotech 15mm paradigm eyepiece. This eyepiece works amazing, much better then the 10-20x zoom.

 

 

How do I use a telescope eyepiece to calculate the magnification I'm getting?

 

Like if I used 15, 8, 5mm eyepieces what would my magnification be with the 4x, 15x, and 30x objective lenses?

 

 

Thanks for your help!

 

 



#2 TOMDEY

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Posted 27 December 2018 - 07:25 PM

The standard assumption/definition used to be 10-inch (250mm) working distance is identically 1x.  So, a 10x microscope eyepiece has a focal length of about an inch (about 25mm). To the extent that's the case... Your 15, 8, 5mm become 17, 31 and 50x.  Tom


Edited by TOMDEY, 27 December 2018 - 07:38 PM.

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#3 TOMDEY

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Posted 27 December 2018 - 07:40 PM

PS you multiply those numbers by the objective magnifications, of course. You may find that your shorter eyepieces aren't appropriate, will yeild "empty" magnification.  Tom



#4 zjc26138

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Posted 27 December 2018 - 08:09 PM

Thanks for your help Tom!


I might pick up a couple extra AT paradigms. They aren’t expensive and seem to make decent microscope eyepieces.


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